An ESPRIT-Based improved algorithm
Yi Li · Signal Processing · 2009
In the numerous algorithms of DOA estimation,ESPRIT algorithm has got traits of fairly fast calculation and high estimation accuracy,therefore it has been widely used in DOA estimation.This algorithm takes advantage of generalized eigenvalue decomposition of covarianee matrices that consisted of two translating identical arrays.By taking this method,it can solve the problem of high-resolution DOA estimation.However,ESPRIT algorithm has greatly increased the complexity of calculating due to eigen-decomposition of covarianee matrice formed by received signal's arrays.It is inconvenient when the algorithm is used in the engineering applications.In this article,An ESPRIT-Based improved algorithm is presented.The proposed method is exploiting received signals from two translating identieal arrays,like ESPRIT algorithm,but it needs not have generalized eigenvalue decomposition to resolve the problem of high-resolution DOA estimation.Theoretical analysis and Simulation's results verify that the proposed algorithm is effectiveness and feasibility.